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Related Questions
ribosomes are to the rer as: a. water toweers are to firefighters b. tires are to a car c. gas stations are to a highway d. propellers are to a helicopter
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Answer:
B. tires are to a car.
Explanation:
Ribosomes are to Rough Endoplasmic Reticulum as tires are to a car. So the correct option is B.
What are ribosomes?
The biological machinery that produces proteins is called a ribosome. Each cell has several ribosomes, which are each composed of two subunits. These two subunits form a tight seal around the messenger RNA molecule before moving down its length and reading each three-letter codon.
The transfer RNA, whose base sequence matches that of the messenger RNA, docks to the ribosome. A specific amino acid can be added to the end of the expanding protein chain by pairing each three-letter messenger RNA codon with the corresponding anticodon on a particular transfer RNA. Once the protein is finished, the ribosome fragments.
The process of making proteins in a cell takes place at an intercellular structure called a ribosome, which is formed of both RNA and protein. The messenger RNA (mRNA) sequence is read by the ribosome, which then converts the genetic code into a specific string of amino acids that develop into extended chains and fold to create proteins.
Therefore the correct option is B.
Read more about ribosomes, here
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What controls when a cell divides?
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Answer:
A variety of genes are involved in the control of cell growth and division. Tight regulation of this process ensures that a dividing cell's DNA is copied properly, any errors in the DNA are repaired, and each daughter cell receives a full set of chromosomes.
Explanation: hope this helps love
Answer:
A variety of genes are involved in the control of cell growth and division. Tight regulation of this process ensures that a dividing cell's DNA is copied properly, any errors in the DNA are repaired, and each daughter cell receives a full set of chromosomes.
Explanation:
Which compound(s) is/are not an electron carrier(s) involved in the respiratory chain? A. Iron-sulfur proteins B. Cytochromes C. Coenzyme A D. NADH Ubiquinone
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Answer:
fwgwe.
Explanation:
What is the outcome of meiosis?
A. Meiosis creates four identical daughter cells
B. Meiosis creates two unique daughter cells
C. Meiosis creates two identical daughter cells
D. Meiosis creates four unique daughter cells
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Answer:
c
Explanation:
Answer:
d.four unique daughter cells
Explanation:
I learned this last year trust me ;)
Biology: Performance Task 1 (USATESTPREP) What goes in the blanks in each column of the Venn Diagram? Need help ASAP (30 minutes or less)
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Answer:
ok hollup ima need to get it up
Match each element or compound with the appropriate symbol or molecular formula.
hydrogen
oxygen
CO2
carbon dioxide
H20
carbon
с
water
H
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Answer: Water- H2O
Hydrogen- H
Carbon- C
Carbon Dioxide- CO2
Explanation:
Answer:
hydrogen = H
oxygen = O
carbon dioxide = CO2
carbon = C
water = H2O
Explanation:
As seen in the picture below,
(Please note that these are NOT in the same order as your question.)
A new microorganism is isolated from a lake and is placed into a solution of KCl. The voltage difference across its membrane is measured at 120 mV. How much energy is required to move a proton from the negative side of the membrane to the positive side?
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Answer: [tex]\Delta U=[/tex] 1.922x10⁻²⁰ Joules
Explanation: Electric Potential Energy (U) is the energy a charged object has due to its location in an electric field and it will only exist with the object is charged.
Voltage or Electric Potential Difference (V) is external work done to move a charge from one point to another in a electric field.
These terms have a relationship, which is given by:
[tex]\Delta U=q\Delta V[/tex]
where
q is the charge
Proton is positive and has a charge of 1.6x10⁻¹⁹C.
Unit for potential energy is Joule (J). The relation between mV and J is
1mV = 10⁻³J
Then:
V = 120x10⁻³
V = 0.12
So, for a proton to move from the negative side of a membrane to the positive:
[tex]\Delta U=q\Delta V[/tex]
[tex]\Delta U=1.6.10^{-19}.0.12[/tex]
[tex]\Delta U[/tex] = 1.922 x 10⁻²⁰
Energy necessary to transport a proton from negative side of the membrane to the positive is 1.922 x 10⁻²⁰J.
What is a major difference between DNA replication and DNA transcription?
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Answer:
RNA molecules produced by transcription are much shorter in length than DNA molecules produced by replication.
Explanation:
In DNA transcription, only a segment of DNA is copied, or "transcribed," to a complementary strand of messenger RNA.
In DNA replication, the entire length of the DNA molecule is copied so that it can be passed to a new cell.
What do you notice about the Moon’s orbit?
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Answer:The Moon has a nearly circular orbit (e=0.05) which is tilted about 5° to the plane of the Earth's orbit. Its average distance from the Earth is 384,400 km. ... Therefore, Earth-bound observers can never see the 'far-side' of the Moon. Tidal forces cause many of the moons of our solar system to have this type of orbit.
Explanation:
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Write a food chain from this food web with six trophic levels.
Link In Comments
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Answer:
where is the link I didn't see in comments
What is the purpose of the Terra satellite? O A. To monitor conditions on Earth B. To identify near-Earth objects C. To search for planets in other solar systems D. To observe the movement of the moon
n e w a. p. e. x. 2020
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Answer:
to monitor conditions on earth
Explanation:
To monitor conditions on Earth is the purpose of the Terra satellite. Therefore, the correct option is option A.
An artificial object that is purposefully placed into orbit around a celestial body, most frequently the Earth, is referred to as a satellite. It can be either manned or unmanned, and depending on how it is made and how it works, its purpose can be very different. Satellites have revolutionised many elements of our daily lives and have become essential parts of modern technology. Satellites come in a variety of varieties, each with a special function. Long-distance communication is made possible, for instance, by communication satellites that transfer signals between ground stations. To monitor conditions on Earth is the purpose of the Terra satellite.
Therefore, the correct option is option A.
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A salt is formed during a reaction of sodium and chlorine ions. Which type of bonding occurred?
A. Van der Waals forces
B. hydrogen bond
C. ionic bond
D. covalent bond
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PLSS HELP ,, - - - A group of students were testing different insulators. They used three metal cans, one wrapped with bubble wrap, a second with a paper towel, and third unwrapped. Equal amounts of hot water were poured into each can and the temperature was noted at definite time intervals. The data is shown in the table.
From the data what can you conclude which is the best insulator?
Aluminum can wrapped with paper towel
Just the aluminum can
Aluminum can wrapped with bubble wrap
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Answer:
Without the table, I can't be 100% certain, but I'm sure that your answer is C). It would only make sense, considering the fact that if bubble wrap is being used, you've put 2 layers of plastic and one layer of trapped air between the can and the hand of those who hold it, thus reducing the amount of thermal energy transfer.
Given that almost all organisms obtain energy from food by the process of cellular respiration, which is the most likely explanation for what prevents Earth from running out of oxygen? A. The net effects of the reactions of photosynthesis and cellular respiration are the opposite of one another, therefore the products of one are the reactants of the other, creating a cycle. B. The energy flow—and thus oxygen flow—for cellular respiration and photosynthesis take place in the same direction, and therefore build upon one another. C. Cellular respiration is a process that releases energy and oxygen, while photosynthesis withdraws energy and uses oxygen, therefore keeping each process in balance. D. Oxygen readily accepts electrons, so cellular respiration uses a negligible amount of oxygen.
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Answer:
a
Explanation:
ther are many explanation
Is cellulose a monosaccharide, disaccharide, or polysaccharide.
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Answer:
Monosaccharide.
Explanation:
The major component in the rigid cell walls in plants is cellulose and is a linear polysaccharide polymer with many glucose monosaccharide units. This is the storage form of glucose in animals and humans which is analogous to the starch in plants.
Answer:
It is a polysaccharide
Explanation:
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What does glucagon do for the body
1. tells the body to release insulin to lower blood glucose levels
2. tells the body to release glycogen to increase blood glucose levels
3. tells the body to release insulin to increase blood glucose levels
4. tells the body to release glycogen to decrease blood glucose levels
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which enzyme reads and builds a complementary strand of dna?
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Answer: RNA polymerase
Explanation:
Transcription begins when an enzyme called RNA polymerase attaches to the DNA template strand and begins assembling a new chain of nucleotides to produce a complementary RNA strand
HELPPP ITS DUE IN A HOUR!!!
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Answer:
below
Explanation:
Radiation Transfer which is the fission of atoms, and conduction, which is the solidarity of atoms
what spheres would be involved and in what way?
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Answer:
The lithosphere contains all of the cold, hard solid land of the planet's crust (surface), the semi-solid land underneath the crust, and the liquid land near the center of the planet.
Explanation:
Based on the data you collected, who likely left the the classroom mess?
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Nicole.
Hope this helps!
Identify the stages of the water cycle in this model
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Answer:
we need to see the picture
Explanation:
ask the question again and show the picture so i can answer it for you :)
Answer:
Evaporation is where the water is coming out of the ocean up into the air.
I think that is rain happening above the mountain? If so, that is precipitation.
The little river thing coming out of the mountain is runoff.
Explanation:
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Answer:
Eukaryotic cells probably evolved about 2 billion years ago. Their evolution is explained by endosymbiotic theory. Mitochondria and chloroplasts evolved from prokaryotic organisms. Eukaryotic cells would go on to evolve into the diversity of eukaryotes we know today.
Hope this helps.
Explanation:
Answer:
Eukaryotic cells :)
Explanation:
please help me with this question:)
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One difference between weather and climate is that _____. climate is localized, and weather occurs over large areas. weather is localized, and climate occurs over large areas. weather is the day-to-day conditions, and climate is the conditions expected over relatively long periods of time. climate is the day-to-day conditions, and weather is the conditions expected over relatively long periods of time.
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Answer:
Weather is the day-to-day conditions, and climate is the conditions expected over relatively long periods of time.
Explanation:
The difference between weather and climate is how long the period of time they refer to is.
Weather is what conditions of the atmosphere are over a short period of time, or day-to-day conditions. It's what we see on the weather forecast every day - whether it's going to be sunny or rainy today and tomorrow and similar.
Climate is what conditions of the atmosphere are over longer periods of time, usually 30 years. In fact, it's an average pattern of weather for a particular region. A description of a region's climate will include the precipitation, temperature, humidity, sunshine, wind velocity, phenomena such as fog, frost, and hail storms, and similar conditions.
Why were some of Schwann and Schleiden’s ideas about cells incorrect
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Answer:
One of Schwann and Schleiden’s ideas was that cells were originated by spontaneous generation, which was later rejected by Virchow.
Explanation:
Schwann studied animal tissues, and by observing them, he concluded that tissues were made of cells.
Simultaneously, Schleiden arrives at the same conclusion when studying vegetable tissues.
Around 1830, they met and together proposed the first cell theory. The theory stated that:
Every living being is made of cells.Cell is the basic unit of life. Cells are originated by spontaneous generation.Virchow, who studied human tissues, during his observations sow the cell in its dividing process. He then proposed that cells were not originated from spontaneous generation, but they were the product of other pre-existing cells and were originated by cellular division. He rejected the third state of Schwann and Schleiden’s ideas.
State the term used to describe an enzyme that functions within a cell.
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Answer:
Enzymes are biological molecules (typically proteins) that significantly speed up the rate of virtually all of the chemical reactions that take place within cells. They are vital for life and serve a wide range of important functions in the body, such as aiding in digestion and metabolism
Explanation:
An intracellular enzymes can be referred to as endocyto enzymes. These are intracellular proteins that accomplish their function within the same cell that synthesized them. They can be either free in the cytosol or associated with an organelle -inside the organelle or fixated to it-.
--------------------------------------------
Enzymes are catalytic intracellular molecules or polypeptides that accelerate different natural chemical reactions. They have specific binding sites to substrate molecules and turn them into product molecules.
Enzymes are in charge of catalyzing cell metabolism. Since they are proteins, they share many properties with all polypeptides. One of these is that they have a limited temperature level at which they denaturalize.
According to the place where they accomplish their function, enzymes can be called
Plasm-specific enzymes ⇒ Their action field is the plasma ⇒ These are exportation proteins.Secreted or Exocyto enzymes ⇒ Their action field are tissues placed far away from where they were produced and released (for instance, the pancreas secretes and releases enzymes that accomplish their function in the duodene) ⇒ These are exportation proteins.Intracellular or Endocyto enzymes ⇒ All enzymes that accomplish their function within the same cell that synthesizes them ⇒ These are intracellular proteins.Within the cell, enzymes can be free in the cytosol, or fixated to an organelle.
Uniloculated enzymes ⇒ 100% cytosolic enzymes.Biloculated enzymes ⇒ They spend part of the time in the cytosol and part in organelles.--------------------------------------------------------
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A student was asked to compare a cell to a typical home. In this analogy, the cell mitochondria are like the (floor,furnace,or roof) and the cell membrane is like the (walls,doors and windows,oven orattic or garage)
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Answer:
um...
If A Plant Cell Were A House...
Cytoplasm
Vacuole
The Cytoplasm
would be the carpeting. The Cytoplasm is the goo that all the organelles reside in, and all the furniture and stuff in the house kind of sit there in the carpeting.
The vacuole would
be the closets and pantries. The vacuole holds random things that the cell needs, and closets and pantries can hold anything you feel like putting in them, like food or clothes.
Lysosome
Mitochondrion
The mitochondrion would be the kitchen. It produces energy for the cell to use, and the kitchen produces food, energy for humans.
Nucleus
Endoplasmic Reticulum
Rough
The nucleus would be my mom. The nucleus controls the cell, and my mom controls my house.
Ribosomes
The Smooth ER would be just plain hallways. The ER is a vast network of tubing that things the cell needs travel down.
The Rough ER would be hallways filled with cattle. This wouldn't be a very good example, because it isn't a very vast network. A lot of people travel down them, though! The Rough ER is like smooth, except with ribosomes.
If you had a herd of cattle in your yard, it would be them. If not, just the kitchen, like the Mitochondrion. Ribosomes synthesize proteins, and cattle make milk, which is full of protein. Also, in the kitchen you can make proteins with different types of dairy, like cheese or milk.
Smooth
Lysosome
Golgi (apparatus)
The Lysosome would be the trashcans, the recycle, and the compost. The Lysosome kills bacteria and holds it in plus other waste, and we dispose of our waste by putting it in one of the above options.
The Golgi (apparatus) would be my dad. The Golgi sorts and packages macromolecules to get them ready to transport. My dad does the same sort of thing, he's in charge of kind of organizing/sorting things around the house.
Cell Membrane
The Cell Membrane would be
the doors and the screens (on the windows). The cell membrane is a semi-permeable barrier, meaning that some things can get through and some can't. For example, only people who have the right key can open the door. Also, with the screens, air can get in, but flies and bees can't.
Chloroplast
Cell Wall
The Chloroplasts would be solar panels, if you had any, or houseplants if not. The Chloroplasts convert sunlight into energy, and both houseplants and solar panels do this same job.
If a cell were a house,
the walls, floors, and ceiling would be the cell wall because they keep everything in the house inside, just like the cell wall keeps all the organelles inside the cell.
By: Erin M.
find what you need in here ok
Explanation:
The large central vacuole of plant cells holds water and supports the shape the plant cell as created by the _______________
A. cell wall
B. chloroplasts
C. DNA
D. endoplasmic reticulum
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. Oleander is a very hardy plant that can survive in a wide
variety of climates. It is also known to have very distinct
hydrotropic behavior. Explain how this may be problematic if
the oleander is planted near a home or business.
Answers
Answer: you have to tend to it for 1 hour ever day and make sure there are no weed taking the water.
Explanation: